Air-moistener



UNiTnD STATES Parent ruins,

CEPHAS H. CUSHMAN, OF AUBURN, MAINE.

AIR-MOISTENER.

SPECEFIGATION forming part of Letters Patent No. 533,637, dated February 5, 1895.

Application filed March 24, 1894. Serial No. 505,018. (No model.)

To all whmn it may concern.-

Be it known that I, OEPHAS H. CUSHMAN, a citizen of the United States of America, residing at Auburn, in the county of Androscoggin and State of Maine, have invented certain new and useful Improvements in Air- Moisteners, of which the following is a specification.

The objectof my invention is to furnish a device by means of which the humidity of the air, in factories and other places where desirable, can be increased and regulated at pleasure, to prevent materials in process of manufacture from becoming dry, and this without the excessive radiation of heat, a disadvantage found to exist heretofore in vaporizers adapted for this purpose. To attain this object, I have constructed an air moistener in which water is introduced into the steam-pipes and is vaporized by the heat and pressure of steam which, being perfectly intermingled with the water, is forced through the thinly slotted openings of the escape-valve in a vaporous condition best adapted to be difiused evenly throughout the surrounding atmosphere. With this air moistener, the whole system of steam-pipes may be covered with any ordinary pipe covering, thus preventing the excessive radiation of heat, a dis advantage found to exist heretofore in devices adapted for this purpose. To thus cover the system of pipes, would so reduce the condensation of steam in the pipes that Vaporizers such as described in my Letters Patent numbered 499,190, and issued from the United States Patent Office under the date of June 6, A. D. 1893, would not have a suflicient supply of the condensed product and would emit comparatively dry vapor into the room.

In the accompanying drawings, Figure 1 is a vertical, sectional view of my air moistener. Fig. 2 is a cross section of the valve-stem on line m 77/, Fig. 1.

A is a hollow, pyramidal or dome-shaped accumulator.

B represents my watenpocket and O my direct valve stem, which is a hollow tube from the outlets at a down to point d tween the points Fa and b and also provided with a screw threaded surface between a and b as is also the inner surface of the nipple in which it is adapted to turn. By this means the valve stem may be raised or lowered as desired and the amount of vapor emitted may be regulated to a nicety.

My water-pocket B is kept full of water by introducing into the system of pipes, water from the city supply, or any available source, which is kept running through said pipes and after filling all the pockets, passes off with the drip, or waste. When the valve is raised at the point a by the turning up of the valve stem G, as the slotted openings appear above the nipple so, fine jets of steam escape from the openings at a. At first, dry steam vapor only escapes, but as soon as the aperture at 01 gets up into the water contained in the pocket B, the water, by the pressure of the steam, is forced through the conduit e and is vaporized by the heat and pressure of the steam, the mingled product of steam and water being emitted into the outer air in jets of vapor, the quality of which, as to temperature and humidity, is, by adjusting the valve, easily regulated to the conditions and needs of the atmosphere in the room.

I do not herein wish to claim any of the devices or combinations secured in my Letters Patent numbered 499,190, reference to which is herein made, but

What I do claim as my invention, and desire to secure by Letters Patent, is

1. In an air rncistener, the combination with a steam pipe provided with an escape orifice for the emission of steam and water, of a water-pocket, arranged in and projecting below the steam pipe directly beneath the orifice substantially as and for the purposes set forth.

2. In an air moistener, the combination with a steam-pipe of a dome-shaped accumulator, provided with an escape-orifice for the egress of' steam and water, a water-pocket at the base of said accumulator and directly beneath the escape-orifice, substantially as and for the purposes set forth.

3. In an air moistener, the combination with a steam-pipe of a dome-shaped accumulator, a water-pocket at base of said accumulator,

and an escape-valve, having a hollow stein extending into the liquid and provided with a longitudinally slotted top for the escape of steam and water, substantially as and for the purposes set forth.

4. In an air moistener, the combination with a steam pipe of a dome-shaped accumulator, a water pocket at base of the same and below the level of the said pipes, and a hollow'valvestem extending into a socket in the base of the said water-pocket and provided with one or more openings or water-inlets near its base,

so located that the influx of Water is cut off before the valve reaches its seat, and having thinly slotted openings near the top of the I5 same for the egress of the vaporous product, substantially as and for the purposes set forth.

In testimony whereof I affix my signature in the presence of two witnesses.

CEPHAS H. CUSHMAN.

Witnesses:

GEORGE E. ll/ICOANN, ALBERT E. VERRILL, 

